Upgrade and restore your compressed air system with our high-performance R40 / R90 Inlet Valve Assembly. Designed for maximum operational reliability, this unloader valve ensures seamless loading/unloading transitions, prevents oil backflow (spitting), and optimizes system efficiency. Fully compatible with top screw compressor brands including Liutech, Bolite, and other VMC-standard air end systems.
Key Features:
Precision Pressure Control: Integrated aluminum control block guarantees fast, accurate loading and unloading response under heavy-duty cycles.
Anti-Spitting & Non-Return Protection: Advanced internal check valve structure prevents oil and gas blowback to the air filter during sudden shutdowns.
Heavy-Duty Construction: Premium cast iron housing with high-grade sealing components provides superior resistance against wear, heat, and corrosion.
Direct OEM Replacement: Standard 4-bolt flange mounting for quick installation, reducing equipment downtime during maintenance.
Technical Specifications:
Compatible Models: R40 (15kW–37kW / 20HP–50HP) | R90 (45kW–90kW / 60HP–120HP)
Application: Rotary Screw Air Compressors
Structure: Cast Iron Body with Aluminum Solenoid/Servo Control Block
Function: Air Intake Control / System Unloading / Anti-Reverse Flow
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